Home / 766,339.80-1,057,581.54-426,808.05

Finding the Fourth Proportional to 766,339.80, 1,057,581.54 and 426,808.05

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Solution

The fourth proportional to 766,339.80, 1,057,581.54 and 426,808.05 is: 589,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,339.80 : 1,057,581.54 = 426,808.05 : x
  2. Step 2: Convert to fraction form
    766,339.80/1,057,581.54 = 426,808.05/x
  3. Step 3: Cross multiply
    766,339.80x = 1,057,581.54 × 426,808.05
  4. Step 4: Simplify right side
    766,339.80x = 451,384,314,803.40
  5. Step 5: Solve for x
    x = 451,384,314,803.40/766,339.80
  6. Step 6: Final answer
    x = 589,013.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.